1. Kondo, Y.;Moricuchi, Y.;Shimizu, H. (1996): Comparison of life cycle CO2 of Electric Vehicle IZA and gasoline vehicles. Energy Resources17, 486–492
2. Yoshioka, M.;Ishitani, H.;Matsuhashi, R. (1996): Study of Life cycle assessment utilizing linear programming methodology. Simulation15, 72–77
3. Ikeda, Y.;Shinozaki, M.;Suga, M.;Hayami, H.;Fujiwara, K.;Yoshioka, K. (1996): Input-output table for environment analysis. Keio University Economic Observatory, Tokyo, Japan
4. Kudoh, Y.;Ishitani, H.;Matsuhashi, R.;Yoshida, Y.;Kobayashi, O.;Morita, K.;Kazuki, S. (1998): Development of transport network model to evaluate environmental improvement. Proceedings of the 1998 conference on energy systems and economics, Feb.1–2, 1998, Tokyo, Japan, p. 9
5. Tsukada, M.;Ishitani, H.;Matsuhashi, R. (1996): Evaluation of options to reduce CO2 emissions in transport sector utilizing lojit models. Simulation.15, 47–52